Yosemite National Park rangers continue to search for 19 year old Aleh Kalman, who has been missing since Saturday, June 1, 2013 when witnesses say that he was swept over the 594 foot Nevada Falls in Yosemite National Park. Kalman was visiting the park with a church group and was seen swimming above Nevada Fall when he was swept downstream to the edge of the waterfall. The area has been closed off to visitors as they search for the missing teen. Authorities have said, ”We do believe that it is impossible to survive a fall like that.”

Yosemite National Park rangers are searching for a 19-year-old Sacramento man who was swept over a waterfall onto jagged rocks below while swimming in the Merced River.

Park spokeswoman Kari Cobb says Aleh Kalman has been missing since witnesses reported seeing him get pulled to the edge of 594-foot Nevada Fall on Saturday afternoon.

A search team assisted by a California Highway Patrol helicopter spent the rest of the day unsuccessfully looking for him, suspended the search when it got dark and then picked it up again Sunday morning. But one Yosemite ranger told CBS Fresno, Calif. affiliate KPGE-TV, “We do believe that it is impossible to survive a fall like that.”